wish of the late Dr Laurence B. Briskman, formerly of the Department of Philosophy, University of Edinburgh, who died on 8 May 2002, having endowed an essay prize fund to encourage work in any area falling under the general description of the critical rationalist philosophy of Karl Popper. Briskman was greatly influenced by Popper, who remained the dominant intellectual influence on his philosophical outlook throughout his career. While originally open for submissions, since 2011 the prize is only awarded to papers having appeared in The British Journal for the Philosophy of Science. The endowment ended in 2017, at which point the BSPS took over funding the prize. The decision was also taken to widen the prize's remit, to include all papers published in the BJPS and not just those concerned with Popper's work. At the same time, the prize's name was changed to the BJPS Popper Prize. Previous winners Impact factor The 2019 impact factor for BJPS was 2.605, while its five-year impact factor was 2.510, making it the leading philosophy of science journal, 3rd in the Science Citation Index, and 4th in the Social Sciences Citation Index. References External links Print: Online: BJPS Review of Books Auxiliary Hypotheses: The BJPS Blog British Society for the Philosophy of Science Philosophy of science journals Oxford University Press academic journals Academic journals associated with learned and professional societies of the United Kingdom Publications established in 1950 Quarterly journals Philosophy Documentation Center academic journals